Chang Liu, Hailiang Shi, Zhiwei Li, Chunqiang Wu, Chengli Qi, Wei Xiong. Detection and Correction of Fringe Count Error in Spaceborne Infrared Hyperspectral Fourier Transform Spectrometer[J]. Acta Optica Sinica, 2020, 40(16): 1630002
- Acta Optica Sinica
- Vol. 40, Issue 16, 1630002 (2020)
Fig. 1. Interferogram diagram when FCE occurs
Fig. 2. Effect of FCE at different positions on phase
Fig. 3. Effect of FCE at different positions on spectrum. (a) Overall view; (b) partial enlargement
Fig. 4. Effects of FCE at different positions on phase difference and spectral deviation. (a) Effect on phase difference; (b) effect on spectral deviation
Fig. 5. Schematics of FCE detection. (a) Interference data with FCE; (b) phase extraction function; (c) phase of phase extraction function
Fig. 6. FCE calibration results. (a) Spectral phase of the interferogram with FCE; (b) linearly fits the phase extraction function; (c)phase contrast chart after FCE correction; (d) spectrum contrast chart after FCE correction
Fig. 7. FCE correction in earth scene. (a) Phase extraction function linear fitting in earth scene; (b) phase comparison before and after correction
Fig. 8. Test results of actual data
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Table 1. FCE error simulation parameters
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Table 2. Instrument related parameters
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Table 3. Algorithm detection and correction under different FCE conditions
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